Reduction of exercise capacity in sarcoidosis in relation to disease severity oleh Kallianos A, Zarogoulidis P, Ampatzoglou F, Trakada G, Gialafos E, Pitsiou G, Pataka A, Veletza L, Zarogoulidis K, Hohenforst-Schmidt W, Petridis D, Kioumis I, Rapti A